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相关概念视频

Introduction to Nuclear Reprogramming01:14

Introduction to Nuclear Reprogramming

1.3K
Nuclear reprogramming is the process of switching gene expression of one cell type to that of another cell type, usually from a differentiated cell state to an undifferentiated cell state. Differentiation occurs during processes such as development and morphogenesis, tissue regeneration, and malignancy. Cells can also be artificially induced to reprogram their gene expression by techniques such as nuclear transfer, induced pluripotency, and cell fusion. Such techniques have many applications in...
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Methods of Nuclear Reprogramming01:24

Methods of Nuclear Reprogramming

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Nuclear reprogramming is a process of transforming one cell type into an unrelated cell type by epigenetic changes that alter the cell’s original gene expression pattern. Such epigenetic changes force cells to express a different set of genes, which play a significant role in inducing transformation into other cell types. Nuclear reprogramming offers applications in reproductive cloning for livestock propagation and regenerative medicine — developing patient-specific cells for...
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Machines01:19

Machines

1.2K
Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. One example of a machine is the cutting plier, which is used to cut wires by applying forces to its handles. When equal and opposite forces are exerted on the handles of the cutting plier, they cause the cutting edges to come together and apply equal and opposite reaction forces on the wire, which are greater than the applied forces.
A free-body diagram of the...
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Machines: Problem Solving I01:22

Machines: Problem Solving I

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A toggle clamp is a mechanical device commonly used for holding and clamping objects in various applications, such as woodworking, metalworking, and assembly operations. Consider a toggle clamp subjected to a force of 200 N at the handle. The vertical clamping force can be calculated, provided the dimensions of the toggle clamp are known.
The toggle clamp system is a machine structure consisting of movable, pin-connected multi-force members that form a stabilized system to transmit forces. The...
846
Machines: Problem Solving II01:30

Machines: Problem Solving II

793
Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. Consider a lifting tong carrying a 100 kg load. It comprises movable sections DAF and CBG linked together with member AB.
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Sequence Networks of Rotating Machines01:24

Sequence Networks of Rotating Machines

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A Y-connected synchronous generator, grounded through a neutral impedance, is designed to produce balanced internal phase voltages with only positive-sequence components. The generator's sequence networks include a source voltage that is exclusively in the positive-sequence network. The sequence components of line-to-ground voltages at the generator terminals illustrate this configuration.
Zero-sequence current induces a voltage drop across the generator's neutral impedance and other...
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相关实验视频

Updated: May 8, 2026

Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures
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超光程序的磁转向连续机器人,具有可编程的形状和功能.

Liyang Mao1, Peng Yang1, Chenyao Tian1

  • 1State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, 2 Yikuang, Harbin, 150001, China.

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概括
此摘要是机器生成的。

这项研究介绍了一种毫米尺度的软连续机器人,可以自主扩展其超光程序的尖端. 它通过复杂的途径导航并转化为功能性工具,提高机器人手术的安全性和多功能性.

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Author Spotlight: Cutting-Edge Robotic Heller Myotomy Protocol for Treatment of Achalasia
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科学领域:

  • 机器人技术 机器人技术 机器人技术
  • 生物医学工程 生物医学工程
  • 材料科学 材料科学 材料科学

背景情况:

  • 毫米级软连续机器人在超光程序中提供安全性,但由于被动遵守和环境相互作用而面临移动性限制和风险.
  • 现有的软机器人在狭窄,微妙的解剖空间中扎着自主导航和操纵.

研究的目的:

  • 推出一种新的毫米级连续机器人,能够自主扩展顶点,并在光量范围内稳定导航.
  • 展示一款超越环境交互限制的机器人设计,用于增强的超光程序.
  • 展示机器人转化为手术任务的功能3D结构的能力.

主要方法:

  • 开发一个毫米级连续机器人,利用相位过渡元件进行可控延长.
  • 实现可编程磁场,用于精确的方向和导航.
  • 与临床成像技术的整合,提供实时指导.
  • 自主塑造和变形能力的演示.

主要成果:

  • 机器人成功地实现了以尖端为基础的延伸,同时通过固态和液态相位过渡保持结构稳定.
  • 通过曲折和脆弱的光线展示了自主导航,使微手术工具运输成为可能.
  • 机器人成功地在更大的解剖空间 (如胃) 中变成了功能性的3D结构.

结论:

  • 开发的毫米尺度连续机器人为透光手术提供了增强的安全性,多功能性和自主能力.
  • 这种设计范式为微创手术中的合作机器人系统开辟了新的可能性.
  • 机器人适应其形状的能力克服了狭窄路径的局限性,扩大了机器人干预的范围.